The Pot Makes You a Psycho?

I am not sure what I make of this.
“We’ve long suspected that cannabis is linked to psychoses, but we have
never before had scans to show how the mechanism works,” said Dr. Philip
McGuire, a professor of psychiatry at King’s College, London.
In analyzing MRI scans of the study’s subjects, McGuire and his colleagues
found that THC interfered with [...]

A Question for Gamers…

Marvel Ultimate Alliance question here.  I am currently attempting to stop the self destruct mechanism on the Shiar ship.  Supposedly, when you destroy the “nodes” it gets you an extra 30 seconds.  When I destroy them, the clock keeps ticking away, never adding the additional time.  What am I missing?